eclass/nginx.eclass: Install *_params files to /etc/nginx

Previously, the {fastcgi,scgi,uwcgi}_params files would be installed in
/usr/share/nginx. This broke workflows for the users that included the
files from the main config, i.e. the included files would not be found.

This commit brings the files back to /etc/nginx to reflect the
pre-nginx.eclass behaviour.

Closes: https://bugs.gentoo.org/960357
Signed-off-by: Zurab Kvachadze <zurabid2016@gmail.com>
Part-of: https://github.com/gentoo/gentoo/pull/43166
Closes: https://github.com/gentoo/gentoo/pull/43166
Signed-off-by: Sam James <sam@gentoo.org>

eclass/nginx.eclass

@@ -23,7 +23,7 @@
 #  - NGINX_MISC_FILES
 
 case ${EAPI} in
-	8) ;;
+	8) inherit eapi9-pipestatus ;;
 	*) die "${ECLASS}: EAPI ${EAPI:-0} not supported" ;;
 esac
 
@@ -800,8 +800,12 @@ nginx_src_install() {
 	rm -- *.default mime.types fastcgi.conf nginx.conf || die "rm failed"
 	popd >/dev/null || die "Returning to the previous directory failed"
 
-	dodir /usr/share
-	mv "${ED}/etc/nginx" "${ED}/usr/share/nginx" || die "mv failed"
+	dodir /usr/share/nginx
+	# Move all miscellaneous bundled files apart from *_params from /etc/nginx
+	# to /usr/share/nginx.
+	find "${ED}/etc/nginx" -type f -not -iname '*_params' -print0 |
+		xargs -0 -I{} mv {} "${ED}/usr/share/nginx"
+	pipestatus || die "find failed"
 
 	insinto /usr/share/nginx
 	if [[ ${NGINX_UPDATE_STREAM} != live ]]; then